What Would Be the Consequences If We Were to Reverse

question 3

Multiple Choice

What would be the consequences if we were to reverse the direction of water flow over the gills of a fish,moving water inward past the operculum,past the gills,the out the mouth?

• A)Reversal of water flow would reduce efficiency of gas exchange.
• B)Reversal of water flow would change the exchange of gases in the body from carbon dioxide out and oxygen in to carbon dioxide in and oxygen out.
• C)Reversal of water flow would increase the efficiency of gas exchange.
• D)Reversal of water flow would eliminate diffusion of gases.
• E)Reversal of water flow would increase the pressure on the capillaries in the gills.